which solid has two bases that are triangles and three lateral surfaces that are rectangles

triangular pyramid
rectangular prism
triangular prism
rectangular pyramid

Well, it sounds like you're describing a triangular prism! It's like the middle child of solid shapes - two triangle bases and three rectangle sides. Just imagine a long, skinny sandwich with delicious triangles at the ends and a rectangular filling in the middle. Yum!

The correct answer is a triangular prism.

A triangular prism is a solid shape that has two bases in the form of triangles and three lateral surfaces in the form of rectangles.

The solid that has two bases that are triangles and three lateral surfaces that are rectangles is a triangular prism.

To understand why this is the correct answer, let's break down the characteristics of the other options:

1. Triangular pyramid: A triangular pyramid has one triangular base and three triangular lateral surfaces. It does not have any rectangular lateral surfaces, so it does not match the given criteria.

2. Rectangular prism: A rectangular prism has two rectangular bases and four rectangular lateral surfaces. It does not have any triangular bases, so it also does not match the given criteria.

3. Rectangular pyramid: A rectangular pyramid has one rectangular base and four triangular lateral surfaces. It does not have two triangular bases, so it does not match the given criteria.

Therefore, the only option remaining is the triangular prism, which has two triangular bases and three rectangular lateral surfaces, fulfilling the given conditions.